Comparison

evcc.io vs KOSTAL Solar 4me

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

evcc.io

Control your home's electric vehicle charging based on solar energy availability or off-peak electricity rates. This app provides remote access to your local evcc server for seamless integration with your EV charger and compatible solar or battery systems.

Highlights
  • Automatic evcc server detection
  • Interaction with evcc UI
  • Demo instance for testing
  • Light/Dark mode
  • Supports various EV chargers
  • Integrates with smart plugs and battery systems
Features
Read full description

Charge your electric car when the sun is shining or when electricity is clean and affordable. With this app, you can access your local evcc instance on your home network. App Features: - Automatic detection of your evcc server - Interaction with your evcc UI - Demo instance available for testing - Light/Dark Mode: Adapts to your device Prerequisite: You must have evcc installed on a device (Raspberry Pi, Windows, macOS, Linux Docker, ...) at your home. What is evcc? evcc is an open-source software that runs at your home. It is compatible with many PV and battery systems and controls your EV charger - regardless of manufacturer. If your car has an online interface, you can also use smart controls like charging schedules, minimum charging, and charging limits. Additionally, it supports dynamic electricity tariffs, smart plugs, balcony solar systems, and small home batteries. Supported EV Chargers: ABB, ABL, Alfen, Alphatec, Amperfied, Audi, Bender, BMW, cFos, Compleo, CUBOS, Cupra, Dadapower, DaheimLaden, Delta, E.ON Drive, E3/DC, Easee, Ebee, echarge, EcoHarmony, Edgetech, Elli, EM2GO, Ensto, ESL, eSystems, Etrel, EVBox, Fronius, Garo, go-e, HardyBarth, Heidelberg, Hesotec, Homecharge, Innogy, INRO, Juice, KEBA, Kontron Solar, Kostal, KSE, LadeFoxx, LRT, Mennekes, my-PV, NRGKick, OBO Bettermann, OpenEVSE, openWB, Optec, Orbis, PC Electric, Peblar, Phoenix Contact, Porsche, Pracht, Pulsares, Pulsatrix, Qcells, Schneider, Schrack, SENEC, Siemens, Skoda, SMA, Smartfox, SolarEdge, Solax, Sonnen, Spelsberg, Stark in Strom, Sungrow, TechniSat, Tesla, Tigo, TinkerForge, Ubitricity, Vestel, Victron, Viridian EV, Volkswagen, Wallbe, wallbox, Walther Werke, Webasto, Weidmüller, Zaptec Supported Smart Plugs: AVM, Homematic IP, HomeWizard, myStrom, Shelly, Tasmota, TP-Link Supported Inverter and Battery Systems: A-Tronix, Acrel, Ads-tec, Alpha ESS, Ampere, Anker, APsystems, AVM, BGEtech, Bosswerk, Carlo Gavazzi, Deye, E3/DC, Eastron, Enphase, FENECON, FoxESS, Fronius, Ginlong, go-e, GoodWe, Growatt, Homematic IP, HomeWizard, Hoymiles, Huawei, IGEN Tech, Kostal, LG, Loxone, M-TEC, myStrom, OpenEMS, Powerfox, QCells, Qcells, RCT, SAJ, SAX, SENEC, Senergy, Shelly, Siemens, SMA, Smartfox, SofarSolar, Solaranzeige, SolarEdge, SolarMax, Solarwatt, Solax, Solinteng, Sonnen, St-ems, Steca, Sungrow, Sunsynk, Sunway, Tasmota, Tesla, TP-Link, VARTA, Victron, Wattsonic, Youless, ZCS Azzurro, Zendure Supported Vehicles: Aiways, Audi, BMW, Citroën, Dacia, DS, Fiat, Ford, Hyundai, Jeep, Kia, Mercedes-Benz, MG, Mini, Nissan, NIU, Opel, Peugeot, Polestar, Renault, Seat, Skoda, Smart, Tesla, Volkswagen, Volvo, Zero Motorcycles

About

KOSTAL Solar 4me

Monitor your home's energy generation, consumption, and grid feed-in with a modern, intuitive interface. Track all energy flows, compare historical data, and optimize self-consumption. Control your ENECTOR wallbox directly from the app.

Highlights
  • Energy generation and consumption monitoring
  • Live data within home network
  • Historical data comparison
  • System status overview
  • Device status visibility
  • Easy wallbox control
  • Dark Mode support
Features
Read full description

KOSTAL Solar 4me – the beginning of another era With KOSTAL Solar 4me, you take the first step toward the future: modern design meets intuitive operation – for maximum transparency and easy control. Conveniently monitor energy generation, consumption, and grid feed-in from anywhere – clearly, intuitively, and with a modern visual presentation. The beginning of more The first release of KOSTAL Solar 4me is aimed at end customers and enables simple monitoring of your system from home. Additional functions from the previous KOSTAL Solar App will be gradually added in upcoming updates – including important features for installers. Energy generation and consumption in focus Keep an eye on all energy flows of your system – now also live within your home network. Compare historical values, identify correlations, and optimize your self-consumption. Clear charts make your energy data immediately understandable. Overview of your systems Keep track of the status of your systems at all times. From the system list, you can go directly to the dashboard of each system – everything at a glance. Clear device status visibility The revised device list shows the current status of all system components at device level. The display is based on the last successful contact with the respective device. Easy wallbox control Control the ENECTOR wallbox directly via the app. After entering your KSEM password once, access remains saved, allowing you to conveniently switch between charging modes – all within your home network. Come to the dark side Experience the app now also in Dark Mode – optimized for low-light conditions and easy on the eyes, day and night. Usage note Certain functions – such as “Easy Access” or “Live data in the home network” – require a PLENTICORE inverter or a KOSTAL Smart Energy Meter in your PV system. Please also ensure that all devices are running the latest firmware version.

Screenshots

evcc.io4 screens
KOSTAL Solar 4me4 screens

Verdict

The call

evcc.io and KOSTAL Solar 4me are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

evcc.io ships an update every 2 months, KOSTAL Solar 4me every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
evcc.io versus KOSTAL Solar 4me: the parameters behind the verdict, then further details
Parameterevcc.ioKOSTAL Solar 4me
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews90.9% of reviews95.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.3 — better
Further details — not scored
Size46 MB191 MB
Age rating4+4+
DeveloperMichael GeersKOSTAL Solar Electric GmbH

Customer experience

evcc.io

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews22 reviews
Positive90.9%
Neutral4.5%
Negative4.5%

KOSTAL Solar 4me

Written reviews20 reviews
Positive95.0%
Neutral5.0%
Negative0.0%

In-app purchases

None

evcc.io

No in-app purchases

None

KOSTAL Solar 4me

No in-app purchases

Questions

Is evcc.io free?
evcc.io is free to download, with no in-app purchases.
Is KOSTAL Solar 4me free?
KOSTAL Solar 4me is free to download, with no in-app purchases.
Do evcc.io or KOSTAL Solar 4me have ads?
Neither evcc.io nor KOSTAL Solar 4me shows ads.
Which is updated more often, evcc.io or KOSTAL Solar 4me?
evcc.io ships an update every 2 months, and KOSTAL Solar 4me every 5 weeks. Most recently, evcc.io was updated on October 24, 2026 and KOSTAL Solar 4me on October 25, 2026.

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